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arXiv · hep-th/9712038

Two loop results from the derivative expansion of the blocked action

Alfio Bonanno·Dario Zappala'
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Abstract

A derivative expansion of the Wegner-Houghton equation is derived for a scalar theory. The corresponding full non-perturbative renormalization group equations for the potential and the wave-function renormalization function are presented. We also show that the two loop perturbative anomalous dimension for the O(N) theory can be obtained by means of a polynomial truncation in the field dependence in our equations.

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Alfio Bonanno, Dario Zappala'. 1997-12-04. Two loop results from the derivative expansion of the blocked action. https://doi.org/10.1103/physrevd.57.7383

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